Plans to increase the Mersey Tunnel tolls are to be discussed later.
If approved, the price rises would come in in April
Car drivers using the Kingsway and Queensway tunnels between Liverpool and Wirral face paying an extra 10p on the current toll, taking it to £1.40.
Operators Merseytravel have said the increase, which would come in on 6 April, is in line with inflation and would help tackle road congestion.
Councillors will discuss the proposed price hikes at a Passenger Transport Authority meeting later.
The tunnel tolls were last raised in 2005, when 10p was added to Class 1 charges, which covers cars and motorcycles.
If this year's plan gets the go-ahead, other vehicle classes would face even larger price rises.
Class 2 vehicles, which include small goods vehicles and coaches, would pay £2.80 - £1.50 more than the current price.
The Mersey Tunnels Users Association has opposed the plans.
A spokesman said: "The Mersey Tunnels already make a substantial profit for the operators, though it was revealed earlier this month that Merseytravel had spent £70 million on the trams scheme before it was stopped.
"The toll increases range from 10p to £1.50. It is bizarre that the biggest of the increases will affect buses - vehicles which we have proposed could be freed from tolls."